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     Entropy, Information Quantity and Complexity——Why Bach's Music Is More Comple than Monkey's?
     熵、信息量和复杂性——为什么Bach谱写的音乐猴子的音乐复杂?
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     ANALYSIS OF SOURCE MECHANISMS OF THE 1979 COYOTE LAKE EARTHQUAKE SEQUENCE: EVIDENCE FOR THAT THE RUPTURE PROCESS OF EARTHQUAKES IN CALIFORNIA IS SIMPLER THAN THAT IN CHINESE MAINLAND
     1979年加州凯奥蒂湖地震序列震源机制分析:美国加州地震中国大陆地震破裂过程简单的证据
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     Socialist Economy Should Be a Commodity Economy More Developed and Perfect Than Capitalism
     社会主义经济应当是资本主义更发达、更完善的商品经济
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     Creating Better Economic Environment Is More Important than Surpassing the Plan
     经济环境赶超计划更有意义
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     Testing Whether F is “More NBU-t_0” Than G
     检验在t_0处F是否G具有更强的NBU性
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  大于
     THE VERTICAL INTEGRATED MOMENTUM SPECTRUM OF THE MUON WITH MOMENTUM LARGER THAN 4 GeV/c AT 3220m ABOVE SEA-LEVEL
     海拔3220米动量大于4 GeV/c的μ子垂直积分动量谱
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     A Discussion on Generating Helical Gear with Prime Number of More Than 100 Teeth without Differential Chains
     在滚齒机上无差动加工大于100齒以上的质数斜齒轮的探讨
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     FORMULAS FOR ECHO-SOUNDING CORRECTION IN THEAREA OF NORTHWESTERN PACIFIC OCEAN WITHDEPTH MORE THAN 200M
     西北太平洋大于200米水深回声测深改正公式
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     OPTIMUM ENERGY DISTRIBUTION OF VELOCITY CONTROL ROBOT WITH DOF GREATER THAN SIX
     自由度大于六的机器人速度控制的能量优化分配
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     A Criterion for the Convergence of the Gauss—Seidel Iteration that Allows Three Norms of A Greater Than 1
     模大于1的Gauss—Seidel迭代法的收敛准则
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  优于
     Satellite Laser Ranging System with a Precision of Less Than 10 cm
     优于10cm精度的卫星激光测距仪
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     A PROOF FOR ONE STANDARD M/M/C QUEUEING SYSTEM QUEUEING SYSTEM BETTER THAN C STANDARD M/M/1 QUEUEING SYSTEMS
     标准的M/M/C优于C个标准M/M/1排队系统的证明
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     The Estimator,better than BLUE of Parameters in Multivariate Regression Model
     一类多元回归模型参数的优于BLUE的估计
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     RESEARCH ON SINGLE-WAVELENGTH DISTANCE MEASUREMENT WITH A PRECISE ACCURACY LESS THAN 10 ̄(-6)
     单波测距精度优于10~(-6)的研究
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     A Single Frequency C/A Code GPS Positioning Method with Positioning Accuracy of Less than 1 Metre
     位置精度优于1米的GPS单频C/A码定位简易方法
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  “than”译为未确定词的双语例句
     π-N,ρ-N AND ■-N INTERACTIONS WITH ENERGIES OF INCIDENT PARTICLES NOT GREATER THAN 10 BEV
     能量在10Bev以下的π-N,p-N和■-N相互作用
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     A TRANSISTOR SAMPLING OSCILLOSCOPE WITH A BANDWIDTH GREATER THAN 1000 Me
     频宽1000兆赫的晶体管取样示波器
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     A Tension Test on the Metallic Thin Sheets of the Thickness Smaller Than 0.5mm
     厚度小于0.5mm的金属簿板拉伸试验
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     On the Probability of Failure of the Hydraulic Structure Due to the Extreme Flood that More than the Design Flood
     论水工建筑物遭遇超设计洪水破坏的概率
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     Use of Ellipsometry to Measure the Thicknesses of Less than 50Ultrathin Oxide Film on Silicon
     用椭圆偏振仪测量50以内硅上的超簿氧化层厚度
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  than
Finally we show for more than half of the infinite series that a presentation for the fundamental group of the space of regular orbits ofW can be derived from our presentations.
      
In the present article we propose a more detailed proof of this fact than the one given by Varagnolo and Vasserot.
      
Here we provide certain conditions (more general than those in [Ka1]) which guarantee preservation of the topology under a modification.
      
In the course of the proof we show that one can reduce the study of generating semi-invariants to the case when the quiver has no oriented paths of length greater than one.
      
The mapping class group of a compact oriented surface of genus greater than
      
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In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and...

In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and their com-ponents are discussed. In the last part of the paper methods of compensating sampled data systems with dead time elements is also considered.

在通常的脉冲控制系统中,当输入信号是阶跃函数时,系统的过渡过程至少在n个采样周期内才能完全结束(n是控制对象的阶数).文中考虑了采用宽度不等的多拍脉冲代替通常的单拍脉冲以加快系统的过渡过程.在采用多拍脉冲以后,系统的过渡过程可以在少于n个采样周期内,甚至在一个采样周期内完全结束.文中叙述了这种脉冲系统的综合方法,也讨论了系统中有关组成部分——脉冲组成器和校正装置——的构成方案及其参数的计算方法.最后并考虑了由于时滞引起的对系统动态特性有害影响的补偿问题.文中举有例题,对文中各节内容作必要的说明.

Analysis of the low frequency response of automatic balancing D-C amplifier with mechanical chopper is illustrated by a typical circuit in this paper. The analysis of dynamic response of the modulation and the demodulation circuits and the auxiliary carrier wave amplifier have been considered more in details. The analysis is based on solving difference equations since the intrinsic working process behaved by the M-D M circuits using mechanical chopper is more accurately described by difference equation other...

Analysis of the low frequency response of automatic balancing D-C amplifier with mechanical chopper is illustrated by a typical circuit in this paper. The analysis of dynamic response of the modulation and the demodulation circuits and the auxiliary carrier wave amplifier have been considered more in details. The analysis is based on solving difference equations since the intrinsic working process behaved by the M-D M circuits using mechanical chopper is more accurately described by difference equation other than by differential equations.

本文結合一个典型线路对带有机械振子的自动稳零直流放大器的低頻特性,进行了分析,并且着重分析了調制解調輔助放大器对緩变信号的频率响应。所用方法是差分方程求解法,因为用差分方程来描述具有机械振子的調制解調线路的固有工作过程,要比用相同的初始条件的微分方程来描述更为准确。文中推导出調制及解調綫路的調制系数k_M、解調系数k_(ДM)以及它們的传递函数。此外,对放大調制波的阻容耦合放大器也进行了分析。分析結果說明,如果放大器耦合迴路的参数选择得合理吋,則此放大器对緩变信号的調制波可作为理想放大器来处理。文中所得結果可作为設計該类型放大器时选择参数的参考。此外,本文对于采用自动稳零直流放大器作运算放大器时可能产生的持續低頻自激振蕩問題,也进行了討論。

The effect of pressure on photographic sensitivity is discussed on the experimental basis that the quantity E/EC, where E is the illumination actually used when the photographic emulsion is under pressure, and Ee the illumination which would be required to produce the same optical density when the emulsion is under no pressure, is a function of pressure only and that for pressures greater than a certain value, E/Ee becomes a linear function of the pressure.

当照相时,照相片子——映像纸,软片,或玻璃板——被压,则其感光性减弱,是为照相的压力效应。设E为照相片子在压力P下得光密度d所需之光照度,若片子不受压力则用光照度E_e即可得此同一之光密度d,故E_e可称在压力P下E之有效照度。吾人实验证明E/E_e为压力P之函数,当p>200kg/cm~2时,E/E_e与P成正比例。 此照相的压力效应,与照相时所用光之颜色,极有关系。黄色光较绿色光为显,绿色光较蓝色光紫色光为显至紫外光则几无此效应。 又此效应之大小,随各种照相片子而不同。就我们所研究的蔡爱斯伊康正色软片,伊司门人像软片,和矮克发等色软片而论,以第一种为最大第二种次之第三种为最小。 这个效应,在实际上,或可有些应用。

 
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